I have been to some of the best of the best planetariums, and this one does not come close to those, but, it is very much worth going to if you live in Las Vegas and you want some planetarium action.
It's small and exists in the most heavily light polluted place in the world, but offers amazing good quality shows. I just saw Black Holes and The Dark Matter Mystery, and they were both well done and informative, but the shows switch out every couple months. The resolution of the screen was nice, and the seats were comfortable enough. The arm rests weren't always the best because they weren't solid to allow for desk conversion. I sat towards the back, and found that offered the best view without strain and made for less head swiveling.
Afterwards, there was a question and answer forum hosted by a professor at the college. He was very knowledgeable and answered all our questions. We also walked around the outside for about four minutes to an observation area to view Jupiter. While the light pollution made star gazing difficult, the professor still pointed out the winter's circle and any other information about the sky he could.
One thing they don't put on their website, but you should know, is that the shows start promptly and they will not let you in after the doors shut. It is very frustrating, even if you're just two minutes late, but understandable. I just wish they would publicize it better so folks could plan accordingly.
Also, it is not very clear where the planetarium is and where to park for it. After you take the first pull in from going eastbound Cheyenne, you will want to pull in to the first parking lot on the right and go into the main building. This is the closest parking you will find.
They also have a little gift shop with astronomical themed stuff and toys perfect for kids and adults alike. I would also recommend this for kids.